Weather History for Islip, NY

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Wednesday, January 9, 2013

  Actual Average Record
Temperature  
Mean Temperature 38 °F 31 °F  
Max Temperature 49 °F 38 °F 64 °F (2008)
Min Temperature 26 °F 23 °F 6 °F (2004)
Degree Days  
Heating Degree Days 27 34  
Month to date heating degree days 283 305  
Since 1 July heating degree days 1996 2232  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 32 °F    
Average Humidity 76    
Maximum Humidity 92    
Minimum Humidity 60    
Precipitation  
Precipitation T in 0.12 in 0.94 in (1991)
Month to date precipitation T 1.08  
Year to date precipitation T 1.08  
Snow  
Snow 0.00 in 0.20 in 1.00 in (2001)
Month to date snowfall 0.1 2.0  
Since 1 July snowfall 4.9 7.9  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.26 in    
Wind  
Wind Speed 7 mph (SW)    
Max Wind Speed 17 mph    
Max Gust Speed 22 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 09, 2013 Rise Set
Actual Time 7:16 AM EST 4:43 PM EST
Civil Twilight 6:45 AM EST 5:13 PM EST
Nautical Twilight 6:11 AM EST 5:47 PM EST
Astronomical Twilight 5:38 AM EST 6:20 PM EST
Moon 4:52 AM EST (1/9) 2:42 PM EST (1/9)
Length of Visible Light 10h 27m
Length of Day
9h 26m
Waning Crescent, 6% of the Moon is Illuminated
Jan 9
Waning Crescent
Jan 11
New
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 30.9 °F - 28.0 °F 89% 30.37 in 9.0 mi Calm Calm - N/A   Partly Cloudy
1:56 AM 28.9 °F - 26.1 °F 89% 30.37 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:56 AM 27.0 °F - 24.1 °F 89% 30.37 in 9.0 mi Calm Calm - N/A   Partly Cloudy
3:56 AM 28.0 °F 24.2 °F 24.1 °F 85% 30.36 in 7.0 mi NNE 3.5 mph - N/A   Scattered Clouds
4:56 AM 27.0 °F - 25.0 °F 92% 30.35 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
5:56 AM 28.0 °F - 25.0 °F 88% 30.35 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
6:56 AM 28.0 °F - 25.0 °F 88% 30.37 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 28.0 °F - 25.0 °F 88% 30.37 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
8:56 AM 33.1 °F - 30.9 °F 92% 30.37 in 6.0 mi Calm Calm - N/A   Overcast
10:56 AM 46.0 °F 41.9 °F 37.9 °F 73% 30.32 in 7.0 mi South 8.1 mph - N/A   Overcast
11:56 AM 48.0 °F - 35.1 °F 61% 30.27 in 8.0 mi South 11.5 mph - N/A   Overcast
12:56 PM 46.9 °F - 37.9 °F 71% 30.24 in 10.0 mi South 8.1 mph 16.1 mph N/A   Overcast
1:56 PM 48.0 °F - 37.9 °F 68% 30.24 in 10.0 mi WSW 12.7 mph - N/A   Overcast
2:56 PM 46.9 °F - 35.1 °F 63% 30.21 in 10.0 mi SW 9.2 mph - N/A   Overcast
3:56 PM 45.0 °F 41.2 °F 37.0 °F 74% 30.14 in 10.0 mi SW 6.9 mph 16.1 mph 0.00 in   Overcast
4:56 PM 46.0 °F 40.2 °F 39.0 °F 76% 30.12 in 10.0 mi SSW 12.7 mph - 0.00 in   Mostly Cloudy
5:56 PM 48.0 °F - 39.9 °F 74% 30.15 in 10.0 mi SW 11.5 mph - N/A   Overcast
6:56 PM 46.9 °F - 39.0 °F 74% 30.14 in 10.0 mi SW 11.5 mph - N/A   Scattered Clouds
7:56 PM 46.9 °F - 37.0 °F 68% 30.16 in 10.0 mi WSW 15.0 mph - N/A   Partly Cloudy
8:56 PM 46.9 °F - 36.0 °F 66% 30.16 in 10.0 mi WSW 10.4 mph - N/A   Partly Cloudy
9:56 PM 46.9 °F - 34.0 °F 61% 30.17 in 10.0 mi West 11.5 mph - N/A   Clear
10:56 PM 46.0 °F 40.6 °F 33.1 °F 61% 30.18 in 10.0 mi WSW 11.5 mph - N/A   Clear
11:56 PM 45.0 °F 39.3 °F 32.0 °F 60% 30.19 in 10.0 mi WSW 11.5 mph - N/A   Clear